Help needed with custom sensor

@michel72 wrote:

Hi, I need a custom template sensor that will create a state based on the attribute and state of the original sensor.

The original sensor is:

image1554×190 25 KB

However if I set the fan speed to off, the sensor speed attribute actually remains ‘medium’, it just switches the fan off.

What I need is 1 sensor that will display the speed attribute, but not when the fan is off, so what I need is a template sensor with the following states:

Off
Low
Medium
High

I build this template:

sensor:
- platform: template
  sensors:
    comfofan_state:
      friendly_name: "Comfofan status"
      entity_id: fan.esp32_fan_controller_02
      value_template: "{{ state_attr('fan.esp32_fan_controller_02', 'speed') }}"

But that will only give me low, medium and high. but not off.

How to do this?

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